WO2013099999A2 - Dispositif de développement, cartouche de traitement et unité à tambour - Google Patents

Dispositif de développement, cartouche de traitement et unité à tambour Download PDF

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Publication number
WO2013099999A2
WO2013099999A2 PCT/JP2012/083763 JP2012083763W WO2013099999A2 WO 2013099999 A2 WO2013099999 A2 WO 2013099999A2 JP 2012083763 W JP2012083763 W JP 2012083763W WO 2013099999 A2 WO2013099999 A2 WO 2013099999A2
Authority
WO
WIPO (PCT)
Prior art keywords
frame
developer
developing device
process cartridge
fixing member
Prior art date
Application number
PCT/JP2012/083763
Other languages
English (en)
Other versions
WO2013099999A3 (fr
Inventor
Yuichi Fukui
Fumito Nonaka
Tachio Kawai
Shunsuke Uratani
Original Assignee
Canon Kabushiki Kaisha
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2011283250A external-priority patent/JP5967930B2/ja
Priority claimed from JP2012053586A external-priority patent/JP5906105B2/ja
Application filed by Canon Kabushiki Kaisha filed Critical Canon Kabushiki Kaisha
Priority to CN201280064046.9A priority Critical patent/CN104011605A/zh
Publication of WO2013099999A2 publication Critical patent/WO2013099999A2/fr
Publication of WO2013099999A3 publication Critical patent/WO2013099999A3/fr
Priority to PH12014501431A priority patent/PH12014501431A1/en

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
    • G03G21/1604—Arrangement or disposition of the entire apparatus
    • G03G21/1619—Frame structures
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0806—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller
    • G03G15/0812—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller characterised by the developer regulating means, e.g. structure of doctor blade
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/0005—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium
    • G03G21/0011—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge for removing solid developer or debris from the electrographic recording medium using a blade; Details of cleaning blades, e.g. blade shape, layer forming
    • G03G21/0029—Details relating to the blade support
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
    • G03G21/18—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge, whereby the process cartridge comprises at least two image processing means in a single unit
    • G03G21/1803—Arrangements or disposition of the complete process cartridge or parts thereof
    • G03G21/181—Manufacturing or assembling, recycling, reuse, transportation, packaging or storage
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
    • G03G21/18—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge, whereby the process cartridge comprises at least two image processing means in a single unit
    • G03G21/1803—Arrangements or disposition of the complete process cartridge or parts thereof
    • G03G21/1817—Arrangements or disposition of the complete process cartridge or parts thereof having a submodular arrangement
    • G03G21/1821—Arrangements or disposition of the complete process cartridge or parts thereof having a submodular arrangement means for connecting the different parts of the process cartridge, e.g. attachment, positioning of parts with each other, pressure/distance regulation

Definitions

  • the present invention relates to a developing device, a process cartridge and a drum unit which are to be used in an image forming apparatus.
  • a process cartridge type in which an electrophotographic photosensitive member and process means acting on the electrophotographic photosensitive member are integrally assembled into a cartridge which is detachably mountable to an image forming apparatus main assembly is employed (Japanese Laid-Open Patent Application (JP-A) 2003-236877 and JP-A 2006-44025) .
  • the electrophotographic image forming apparatus forms an image on a recording material by using an electrophotographic image forming process.
  • Examples of the image forming apparatus may include an electrophotographic copying machine, an electrophotographic printer (e.g., an LED printer, a laser beam printer or the like) , an electrophotographic printer (e.g., an LED printer, a laser beam printer or the like) , an electrophotographic printer (e.g., an LED printer, a laser beam printer or the like) , an electrophotographic printer (e.g., an LED printer, a laser beam printer or the like) , an electrophotographic printer (e.g., an LED printer,
  • electrophotographic facsimile machine an electrophotographic word processor, and the like.
  • the process cartridge is prepared by integrally assembling an electrophotographic
  • the photosensitive member drum as an image bearing member and, as process means acting on the photosensitive drum, at least a developing roller as a developer carrying member into a cartridge.
  • the developing device is prepared by integrally assembling a developer accommodating portion and the developing roller into a cartridge which is detachably mountable to the image forming apparatus.
  • the image forming apparatus main assembly is a portion of the image forming apparatus from which the process cartridge and the developing device are removed.
  • the process cartridge is divided into a developing unit and a photosensitive drum unit.
  • regulating member for regulating a developer layer on the developing roller is fixed to a developing device frame as a first frame with a screw. Further, a bearing as a second frame for supporting the
  • developing roller is fixed with a screw at two end positions of the first frame with respect to a
  • the developing roller and the developer regulating member are positioned relative to each other and are integrally disposed.
  • a cleaning member for removing the developer on the portion is fixed to a cleaning (device) frame as the first frame.
  • the bearing as the second frame for supporting the photosensitive drum is fixed to the first frame with the screw at two end positions of the first frame with respect to a photosensitive drum axial direction (which is the same direction as the developing roller axial direction and is hereinafter referred to as a longitudinal direction) .
  • the photosensitive drum and the cleaning member are positioned relative to each other and are integrally disposed.
  • Such a process cartridge is collected and recycled when it reaches the end of its lifetime.
  • the developing unit is disassembled into respective parts.
  • the disassembled parts are classified every material, thus being recycled and reused.
  • the photosensitive drum unit photosensitive member unit
  • a principal object of the present invention is to provide a developing device, a process cartridge and a drum unit which have realized downsizing.
  • Another object of the present invention is to provide a technique capable of reducing the number of disassembling steps in an image forming apparatus.
  • a developing device for use with an image forming apparatus, comprising: a developer carrying member for carrying a developer; a developer regulating member for regulating an amount of the developer carried on the developer carrying member; a first frame for supporting the developer regulating member; a fixing member for fixing the developer regulating member to the first frame; a second frame mounted to the first frame; and a molded resin portion formed by injecting a melted resin material into a space defined by the first frame and the second frame, wherein the molded resin portion is engaged with a first limiting portion provided as a part of the fixing member and projected into the space and is engaged with a second limiting portion provided as a part of the second frame to connect the first frame and the second frame.
  • a developing device for use with an image forming apparatus, comprising: a developer carrying member for carrying a developer; a developer regulating member for regulating an amount of the developer carried on the developer carrying member; a first frame for supporting the developer regulating member; a fixing member for fixing the developer regulating member to the first frame; a second frame mounted to the first frame; and a molded resin portion formed by injecting a melted resin material into a space defined by the first frame and the second frame, wherein the molded resin portion is engaged with a first limiting portion provided as a part of the fixing member and projected i_nto jthe _sp_ac_e . and is engaged with a second limiting portion provided as a part of the second frame to connect the first frame and the second frame.
  • a process cartridge detachably mountable to a main assembly of an image forming apparatus comprising: a photosensitive drum; a cleaning member for removing a developer from the photosensitive drum; a first frame for supporting the cleaning member; a fixing member for fixing the cleaning member to the first frame; a second frame mounted to the first frame; and a molded resin portion formed by injecting a melted resin material into a space defined by the first frame and the second frame, wherein the molded resin portion is engaged with a first limiting portion provided as a part of the fixing member and projected into the space and is engaged with a second limiting portion provided as a part of the second frame to connect the first frame and the second frame.
  • Figure 1 is a schematic sectional view for illustrating a fixing method of a developing device frame and a non-driving side bearing in an embodiment of the present invention.
  • Figure 2 is a schematic sectional view of an image forming apparatus in the embodiment of the present invention.
  • Figure 3 is a schematic sectional view of a process cartridge in the embodiment of the present invention .
  • Figure 4 is an exploded perspective view of the process cartridge as seen from a non-driving side in the embodiment of the present invention.
  • Figure 5 is an exploded perspective view of a developing device as seen from the non-driving side in the embodiment of the present invention.
  • Figure 6 is an illustration of positioning of the developing device frame and the non-driving side bearing in the embodiment of the present invention.
  • Figure 7 is an enlarged view of the developing device frame as seen from a front side of a developing blade in embodiment of the present invention.
  • Parts (a) and (b) of Figure 8 are sectional views for illustrating a fixing method of the
  • Parts (a) and (b) of Figure 9 are sectional views for illustrating a disassembling method of the non-driving side bearing from the developing device frame .
  • Figure 10 is a perspective view for
  • Embodiment 1 of the present invention will be described with reference to the drawings .
  • a full-color image forming apparatus to which four process cartridges are detachably mountable is
  • the number of the process cartridges mounted in the image forming apparatus is not limited to four but may appropriately be set as desired.
  • the number of the process cartridge mounted in the image forming apparatus is one.
  • a printer is exemplified as an example of the image forming apparatus.
  • FIG. 2 is a schematic sectional view of an image forming apparatus 1 according to this embodiment of the present invention. As shown in Figure 2, this image forming apparatus 1A is a four color-based full-color laser printer using the electrophotographic image forming process and effects color image
  • the image forming apparatus 1 is of a process cartridge type in which the process cartridge is detachably mountable to an image forming apparatus main assembly 2 and a color image is formed on the recording material S.
  • the side (surface) On which a front door 3 is provided is referred to as a front side (surface) , and a side (surface) opposite to the front side
  • FIG. 1 surface
  • FIG. 1A surface
  • FIG. 1A surface
  • FIG. 2 is a sectional view of the image forming apparatus 1 as seen from the non-driving side, in which the front surface (side) on the drawing is the non-driving side of the image forming apparatus 1, the right side on the drawing is the front surface (side) of the image forming apparatus 1, and the rear side is the driving side of the image forming apparatus 1.
  • Each of the first to fourth process cartridges P (PY, PM, PC, PK) includes the same
  • a bias voltage (charging bias, developing bias or the like) is supplied (not shown) .
  • cartridges P (PY, PM, PC, PK) includes a developing device 9 provided with a developing means for developing an electrostatic latent image on the photosensitive drum 4.
  • the photosensitive drum unit 8 and the developing device 9 are connected with each other.
  • a charging roller 5 is used.
  • a cleaning blade a cleaning blade
  • the first process cartridge PY accommodated the developer of yellow (Y) in its developer
  • the second process cartridge PM accommodates the developer of magenta (M) in its developer accommodating portion 49 of the developing device frame 29 and forms the developer image of magenta on the surface of the photosensitive drum 4.
  • the process_jhird_c_ajrtrJ ⁇ dg_e__rc_ accommodates the developer of cyan (C) in its
  • the fourth process cartridge PK accommodates the developer of black (K) in its developer accommodating portion 49 of the developing device frame 29 and forms the developer image of black on the surface of the photosensitive drum .
  • a laser scanner unit LB as an exposure means is disposed above the first to fourth process cartridges P (PY, P , PC, PK) .
  • This laser scanner unit LB outputs laser light Z correspondingly to image
  • the laser light Z passes through an exposure window portion 10 of each process cartridge P so that the surface of the photosensitive drum 4 is subjected to scanning exposure to the laser light L.
  • an intermediary transfer belt unit 11 as a transfer member is disposed under the first to fourth process cartridges P (PY, PM, PC, PK) .
  • This intermediary transfer belt unit 11 includes a driving roller 13, a turn roller 14 and a tension roller 15, and includes a transfer belt 12 extended and stretched by the rollers
  • the photosensitive drum 4 of each of the first to fourth process cartridges P (PY, PM, PC, PK) is contacted to an upper surface of the transfer belt 12 at its lower surface.
  • a resultant_contact _ ortion___ is . _a primary transfer portion.
  • primary transfer rollers 16 are disposed opposed to the associated photosensitive drums .
  • a secondary transfer roller 17 is disposed in contact with the transfer belt 12.
  • a resultant contact portion between the transfer belt 12 and the secondary transfer roller 17 is a secondary transfer portion.
  • a sheet feeding unit 18 is disposed below the intermediary transfer belt unit 11.
  • This sheet feeding unit 18 includes a sheet feeding tray 19 in which sheets of the recording material S are stacked, and includes a sheet feeding roller 20 and the like.
  • a fixing unit 21 and a sheet discharging unit 22 are disposed at an upper left portion of the image forming apparatus main assembly 2 in Figure 2, a fixing unit 21 and a sheet discharging unit 22 are disposed. An upper surface of the image forming apparatus main assembly 2 constitutes a sheet discharge tray 23.
  • the transfer belt 12 is also rotationally driven in the same direction (arrow C direction in Figure 2) as the rotational direction of the photosensitive drums 4 (at their contact portions) at a speed corresponding to the speed of the photosensitive drums 4.
  • the laser scanner unit LB is also driven. In synchronism with the drive of the laser scanner unit LB, the surface of the photosensitive drum 4 of each process cartridge P is uniformly charged to a predetermined polarity and a predetermined potential by the charging roller 5.
  • the laser scanner unit LB scans and exposes the surface of each photosensitive drum 4 with the laser light Z depending on an image signal for an associated color. As a result, an electrostatic latent image depending on the image signal for the associated color is formed on the surface of each photosensitive drum 4.
  • the thus formed electrostatic latent image is developed by the developing roller 6 which is rotationally driven (in an arrow E direction in Figure 3 or in the clockwise direction in Figure 2) at a predetermined speed.
  • developer image is primary-transferred onto the transfer between 12.
  • the recording material S is introduced into a secondary transfer portion which is a contact portion between the secondary transfer roller 17 and the transfer belt 12 with predetermined control timing.
  • a secondary transfer portion which is a contact portion between the secondary transfer roller 17 and the transfer belt 12 with predetermined control timing.
  • Figure 3 is a sectional view of the process cartridge P in this embodiment.
  • the first to fourth process cartridges P (PY, PM, PC, PK) have the same electrophotographic process mechanism but are
  • Each process cartridge P includes the
  • process means may include the charging roller 5 as the
  • photosensitive drum (photosensitive member) 4 photosensitive member 4 4, and the like member. Further, the contact P is divided into the drum unit 8 and the developing device 9
  • Figure 5 is a perspective view of the developing unit 9
  • the drum unit 8 is constituted by the photosensitive drum 4, the charging means 5, the cleaning blade 7, a cleaning (device) frame 26, a residual developer accommodating portion 27 and cartridge cover members 24 and 25.
  • the photosensitive drum 4 is rotatably supported by the driving side cartridge cover member 24 and the
  • non-driving side cartridge cover member 25 which are provided at longitudinal end portions of the process cartridge P.
  • photosensitive drum 4 is defined as a longitudinal direction.
  • the cartridge cover members 24 and 25 are fixed to the, cleaning frame 26 in end sides of the cleaning frame 26 with respect to the longitudinal direction.
  • a coupling 4a for transmitting a driving force to the photosensitive drum 4 is provided in one longitudinal end side of the photosensitive drum 4.
  • the coupling member 4a is engaged with a coupling (not shown) as a drum drive outputting portion of the apparatus main
  • the charging roller 5 is supported by the cleaning frame 26 so that it can be rotated by the rotation of the
  • the cleaning blade 7 is fixed to the cleaning frame 26 with screws so that it is contacted to the peripheral surface of the photosensitive drum 4 at predetermined pressure. A transfer residual developer removed from the
  • peripheral surface of the photosensitive drum 4 by the cleaning blade 7 is accommodated in a residual
  • the cartridge cover members 24 and 25 are provided with supporting holes 24a and 25a for
  • Figure 5 is a perspective view of the
  • the developing unit 9 as seen from the non-driving side in this embodiment.
  • the developing unit 9 is, as shown in Figures 3 and 5, constituted by the developing roller 6, a developing blade 31, the developing device frame 29, bearings (driving side bearing 50 and non-driving side bearing 51 in Figure 5), and the like member.
  • the developing device frame 29 includes the developer accommodating portion 49 for accommodating the
  • the developing device frame 29 is provided with fixing holes (fixing hole 29a for the blade in the non-driving side and fixing hole 29b for the blade in the driving side) for fixing the
  • developing blade 31 as a developer regulating member for regulating a layer thickness of the developer on the peripheral surface of the developing roller 6.
  • the developing blade 31 is fixed to the developing device frame 29 by tightening screws 52 and 53 into the non-driving side blade fixing hole 29a and the driving side blade fixing hole 29b, respectively.
  • developing roller 6 is rotatably supported by the non-driving side bearing 51 and a driving side bearing 50.
  • Each of the non-driving side bearing 51 and the driving side bearing 50 which support the developing roller 6 is positioned and fixed to the developing device frame 29. A positioning method and a fixing method will be described later.
  • a developing roller gear 69 is provided at a longitudinal end of the developing roller 6 supported by the non-driving side bearing 51 and the driving side bearing 50. Further, to the driving side bearing 50, a developing device input gear 70 is provided so as to be connected with the developing roller gear 69.
  • the developing device cover member 32 is fixed to the outside portion of the driving side bearing 50 so as to cover the developing roller gear 69 and the developing device input gear 70.
  • the developing device cover member 32 is provided with a cylindrical portion 32a in which the developing device input gear 70 is to be exposed through an opening 32b provided inside the cylindrical portion 32a.
  • the develop input gear 70 has a constitution such that it is engaged with an unshown material coupling member when the process cartridge P is mounted in the
  • the developing device frame 29 and the non-driving side bearing 51 are configured to form a filling space of a melted resin material at their boding portion and are connected with each other by a molded resin portion formed by solidification of the melted resin material injected into such a filling space.
  • the positioning method and the fixing method will be described by using a first frame as the developing device frame 29 and a second frame as the non-driving side frame 51.
  • the positioning method and fixing method between the developing device frame 29 and the driving side bearing 50 ( Figure 5) in the driving side a similar constitution can be used.
  • Figure 6 is an enlarged view of the developing device frame 29 in the non-driving side during
  • the developing device frame 29 to which a base metal plate 31b of the developing blade 31 is to be fixed includes a positioning hole 29c, a rotation limiting hole 29d and a developing device frame side longitudinal abutment surface 29e.
  • the developing blade 31 is the developer regulating member for regulating the developer layer on the developing roller.
  • the developing device frame 29 includes an injection recess 29f as an injecting portion where the melted resin material is injectable.
  • the developing device frame side longitudinal abutment surface 29e is cylindrically disposed, and a cut-away portion 29g formed by cutting away a part of the developing device frame side longitudinal abutment surface 29e is provided.
  • the non-driving side bearing 51 includes a positioning boss 51a, a rotation limiting boss 51b, and a bearing side longitudinal abutment surface 51c.
  • the non-driving side bearing 51 further includes a supporting hole 51e and an inject path 51d for guiding the melted resin material.
  • the positioning hole 29c and the positioning boss 51a are engaged, and the rotation limiting hole 29d and the rotation limiting boss 51b are engaged. Further, the developing device frame side longitudinal abutment surface 29e and the bearing side longitudinal abutment surface 51c are intimately contacted, so that the non-driving side bearing 51 is positioned relative to the developing device frame 29. At this time, the developing roller 6 is supported by the supporting hole 51e of the
  • injection recess 29f of the developing device frame 29 are coincide (aligned) with each other.
  • Figure 7 is an enlarged view of the developing device frame 29 as seen in a front surface direction (arrow W direction in Figure 6) of the developing blade 31.
  • Parts (a) and (b) of Figure 8 are sectional views of a resin material injection path in the developing device frame 29 and the non-driving side bearing 51 taken long A-A line in Figure 7, in which (a) of Figure 8 is the sectional view before
  • Figure 1 is a sectional view of the non-driving side bearing 51 and the developing device frame 29, taken along A-A line in Figure 7, in a state in which the melted resin material for fixing is injected (in a state in which the molded resin portion 54 is formed) .
  • the non-driving side bearing 51 includes the injection path 51d for guiding the melted resin material in an arrow Q direction. With respect to the arrow Q direction, a diameter M of the inject path 51d at an upstream flow passage is larger than a diameter N of the inject path 51d at a downstream flow passage. Further, the non-driving side bearing 51 includes a second limiting (regulating) portion 51i for limiting (regulating) the melted resin material injected into the injection path 51d. The second limiting portion 51i is a surface which will face the melted resin material injected in an injection direction (arrow Q direction in Figure 8) .
  • the injection path 51d includes a portion where a space becomes narrow with respect to a melted resin material guiding direction, and this portion constitutes the second limiting portion 51i for limiting movement of the non-driving side bearing 51 relative to the molded resin portion 54 after the solidification of the melted resin material.
  • the developing device frame 29 includes the injection recess 29f for receiving the melted resin material injected in the arrow Q direction (a) of
  • the cut-away portion 29g is provided at a part of the inner surface of the injection recess 29f. Further, the developing device frame 29 is provided with a non-driving side blade fixing hole (through hole) 29a extending in an arrow J direction crossing the melted resin material injection direction (arrow Q direction in (a) of Figure 8) .
  • non-driving side blade fixing hole 29a penetrates through (opens to) the injection recess 29f.
  • the screw 52 as a fixing member for fixing the base metal plate 31b of the developing blade 31 to the developing device frame 29 is to be injected.
  • the screw 52 is projected into the inject recess 29f by a length L.
  • the projected portion occupies a part of an inner portion of the injection recess 29f with a width W to leave a portion, with a width R narrower than the width W, formed between an end surface (bottom) 52a of the screw 52 and a lower inner surface of the injection recess 29f.
  • the projected portion of the screw 52 in the injection recess 29f constitutes a first limiting (regulating) portion 52b for limiting
  • the first limiting portion 52b is, after the melted resin material is solidified, in an engaged with the molded resin portion 54 so as to limit the molded resin portion from being demounted
  • injection recess 29f are aligned in a line from an upstream side of the arrow Q direction. At this time, a resin material outlet (exit) 51g of the injection path 51d in the downstream side of the arrow Q
  • injection recess 29f by a depth X form a contact surface between the developing device frame side longitudinal abutment surface 29e and the non-driving side bearing longitudinal abutment surface 51c with respect to the arrow Q direction.
  • a distance T between an upper inner surface of the injection recess 29f and an outer portion 51h, of the resin material outlet 51g, as an outer wall portion of the resin material outlet 51g is set so as to be smaller than the width R between the end surface 52a of the screw 52 and the lower inner surface of the injection recess 29f and a width surface between the first limiting portion 52b of the screw 52 and a right-hand inner surface of the injection recess 29f.
  • the second limiting portion 51i and the melted resin material are adhesively bonded to each other, and in the injection recess 29f, the first limiting portion 52b and the melted resin material are adhesively bonded to each other. Further, the melted resin material passes through the portion (width T portion) between the outer portion 51h of the resin material outlet and the upper inner surface of the injection recess 29f to reach a buffer portion 55 provided, from the cut-away portion 29g, between the developing device frame 29 and the non-driving side bearing 51, thus filling a part of the buffer portion 55.
  • the melted resin material is injected in a large amount. That is, into the injection path 51d and the injection recess 29f, the melted resin material is caused to flow in an amount more than an amount in which a maximum volume of the injection path 51d and the injection recess 29f.
  • the buffer portion 55 have a volume in which an excessive melted resin material is accommodated, so that the melted resin material cannot be leaked out of the buffer portion 55.
  • the portion (width R portion) bearing the end surface 52a of the screw 52 and the lower inner surface of the injection recess 29f and the portion (width S portion) between the first limiting portion 52b of the screw 52 and the right-hand inner surface of the injection recess 29f are broader than the portion (width T portion) between the outer portion 51h of the resin material outlet and the upper inner surface of the injection recess 29f.
  • the melted resin material does not fill the buffer portion 55 by passing through the width T
  • portion-to-be-locked 54a of the molded resin portion 54 are adhesively contacted, so that movement of the non-driving side bearing 51 relative to the developing device frame 29 in an arrow V direction in Figure 1 is limited.
  • first limiting portion 52b and a second portion-to-be-locked 54b of the molded resin portion 54 are adhesively contacted, so that movement of the developing device frame 29 relative to the molded resin portion 54 in an arrow Q direction in
  • Figure 1 is limited. Therefore, the non-driving side bearing 51 cannot be moved relative to the developing device frame 29 in the arrow V direction in Figure 1, thus being connected to the developing device frame 29.
  • a resin material used as the melted resin material for forming the molded resin portion 54 is polyacetal (POM: polyoxymethylene) , and the melted resin material is melted at about 190 °C to about
  • HIPS Polystyrene
  • the melted resin material is injected so that a resin temperature thereof is lower than a melting portion of polystyrene (HIPS) for forming the injection recess 29f of the developing device frame 29 when the melted resin material reaches the inner surface of the
  • the inner surface of the injection recess 29f is not dissolved by heat of the melted resin material and therefore the materials are not mutually dissolved between the molded resin portion 54 and the injection recess 29f of the developing device frame 29, so that a bonding force is not readily generated.
  • the bonding force is not readily generated between the molded resin portion 54 and the injection recess 29f of the developing device frame 29 and therefore these portions are freely separable.
  • non-driving side 51 and the developing device frame 29 can be maintained, without being separated, by the second limiting portion 51i and the first limiting portion 52b.
  • polyacetal (POM) is used for the molded resin portion 54
  • polystyrene (HIPS) is used for the developing device frame 29 and the non-driving side bearing 51, but other resin materials may also be used when materials used for the molded resin portion 54 and the developing device frame 29 have low compatibility with each other and thus are freely separable from each other.
  • the material used for the molded resin portion 54 and the material used for the first and second frames have mutual solubility (compatibility)
  • the first and second frames can be fixed more firmly.
  • the present invention limited to the above constitution when at least a portion, of the developing device frame 29, contacting the molded resin portion 54 is constituted so as to have a melting point higher than the temperature of the injected melted resin material.
  • the molded resin portion 54 is intimately contacted to the screw 52 for fixing the developing blade 31 to the developing device frame 29, so that the non-driving side bearing 51 is fixed to the developing device frame 29.
  • this method different from the conventional method, there is no need to separately provide the space (screw fixing space or conventional resin bonding space) for
  • the above constitution can be realized by using the cleaning frame 26 as the first frame, the cartridge cover members 24 and 25 as the second developing roller and the cleaning blade 7 as the cleaning member in place of the developing blade. Therefore, the above
  • constitution is not limited to that for fixing the developing device frame 29 and the non-driving side bearing 51.
  • the drum unit 8 can employ a similar constitution by using the cleaning frame 26 as the first frame and the cartridge cover members 24 and 25 as the second frame and therefore the constitution in the present invention is not limited to that for fixing the developing device frame 29 and the
  • Parts (a) and (b) of Figure 9 are sectional views of the developing device frame 19 and the melted resin material injection portion of the non-driving side bearing 51 taken along A-A line in Figure 7 when the screw 52 is removed from the
  • FIG. 9 is a perspective view of the developing unit 9 during disassembling. As shown in Figures 9 and 10, when the screw 52 is disconnected form the non-driving side blade fixing hole 29a in the arrow Y direction, in the figures, which is the axial
  • the base metal plate 31b is disconnected from the developing device frame 29, so that the developing blade 31 is demounted from the developing device frame 29.
  • the non-driving side bearing 51 is moved in the arrow V direction in the figures, there is no second limiting surface 52b which has acted on the second portion-to-be-locked 54b of the molded resin portion 54 since the screw 52 has already been disconnected, and therefore the non-driving side bearing 51 is demounted from the developing device frame 29.
  • the molded resin portion 54 and the injection recess 29f have low compatibility and are freely separable from each other, so that the molded resin portion 54 and the injection recess 29f are not adhesively fixed.
  • first limiting surface 51i and the first portion-to-be-locked 54a of the molded resin portion 54 are adhesively contacted to each other, and therefore the molded resin portion 54 is demounted together with the non-driving side bearing 51 from the developing device frame 29. Then, the developing roller 6 supported by the non-driving side bearing 51 is demounted from the non-driving side bearing 51.
  • connection between the developing device frame 29 and the non-driving side bearing 51 is eliminated by a single step such that the screw 52 which has fixed the developing blade 31 to the developing device frame 29 is removed. That is, the limitation by the first limiting portion 52b of the screw 52 is eliminated to enable separation of the molded resin portion 54 from the developing device frame 29, so that the
  • the developing blade 31, the non-driving side bearing 51 and the developing roller 6 can be concurrently disassembled from the developing device frame 29.
  • the conventional two steps consisting of a step of demounting the non-driving side bearing 51 from the developing device frame 29 and a step of demounting the developing blade 31 from the developing device frame 29 can be reduced to the single step, so that a disassembling property of the process cartridge can be improved.
  • the drum unit 8 its constituent members can be disassembled by a similar disassembling method in which the cleaning container 26 is used as the first frame and the cartridge cover members 24 and 25 are used as the second frame. That is, the above constitution is not limited to that for disassembling the developing device frame 29 and the non-driving side bearing 51.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Dry Development In Electrophotography (AREA)
  • Electrophotography Configuration And Component (AREA)

Abstract

L'invention concerne un dispositif de développement utilisé avec un appareil de formation d'image, qui comprend: un élément de transport de développeur destiné à transporter un développeur; un élément de régulation de développeur destiné à réguler une quantité du développeur transportée sur l'élément de transport du développeur; un premier cadre destiné à supporter l'élément de régulation du développeur; un élément de fixation destiné à fixer l'élément de régulation du développeur au premier cadre; un deuxième cadre monté sur le premier; et une partie de résine moulée formée par injection d'une résine fondue dans un espace défini par les premier et deuxième cadres. La partie de résine moulée est couplée à une première partie de limitation conçue comme partie de l'élément de fixation et projetée dans l'espace et couplée à une deuxième partie de limitation conçue comme partie du deuxième cadre pour relier le premier et le deuxième cadre.
PCT/JP2012/083763 2011-12-26 2012-12-19 Dispositif de développement, cartouche de traitement et unité à tambour WO2013099999A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201280064046.9A CN104011605A (zh) 2011-12-26 2012-12-19 显影装置、处理盒和鼓单元
PH12014501431A PH12014501431A1 (en) 2011-12-26 2014-06-20 Developing device, process cartridge and drum unit

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2011-283250 2011-12-26
JP2011283250A JP5967930B2 (ja) 2011-12-26 2011-12-26 現像装置、プロセスカートリッジ、樹脂接合体及びそれらの製造方法
JP2012053586A JP5906105B2 (ja) 2012-03-09 2012-03-09 現像装置及びプロセスカートリッジ
JP2012-053586 2012-03-09

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WO2013099999A2 true WO2013099999A2 (fr) 2013-07-04
WO2013099999A3 WO2013099999A3 (fr) 2013-10-10

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US (2) US8909096B2 (fr)
CN (1) CN104011605A (fr)
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11871778B2 (en) 2018-06-28 2024-01-16 Philip Morris Products S.A. Cartridge for an aerosol-generating system comprising an alkaloid source comprising a liquid alkaloid formulation

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101703103B1 (ko) 2011-11-09 2017-02-06 캐논 가부시끼가이샤 카트리지 및 유닛
WO2013099999A2 (fr) * 2011-12-26 2013-07-04 Canon Kabushiki Kaisha Dispositif de développement, cartouche de traitement et unité à tambour
JP6004690B2 (ja) * 2012-03-21 2016-10-12 キヤノン株式会社 プロセスカートリッジ及び画像形成装置
JP5675888B2 (ja) 2012-05-17 2015-02-25 キヤノン株式会社 現像剤収納ユニット、現像装置、プロセスカートリッジ、画像形成装置
JP6218493B2 (ja) 2012-09-06 2017-10-25 キヤノン株式会社 ユニット、ユニットの製造方法、及び画像形成装置、画像形成装置の製造方法
JP5962379B2 (ja) * 2012-09-21 2016-08-03 ブラザー工業株式会社 現像カートリッジおよびその製造方法
JP2014071428A (ja) 2012-10-01 2014-04-21 Canon Inc プロセスカートリッジ
JP2014237472A (ja) 2013-06-07 2014-12-18 キヤノン株式会社 梱包部材、梱包部材に梱包されたカートリッジ
JP6338460B2 (ja) * 2013-08-20 2018-06-06 キヤノン株式会社 カートリッジ及び画像形成装置
JP6274892B2 (ja) 2014-02-04 2018-02-07 キヤノン株式会社 現像剤収容器、カートリッジ、画像形成装置
KR101610191B1 (ko) * 2014-05-07 2016-04-07 삼성전자주식회사 이미징 카트리지 및 이를 채용한 전자사진방식 화상형성장치
JP6376841B2 (ja) * 2014-05-23 2018-08-22 キヤノン株式会社 カートリッジ及び画像形成装置
JP6552212B2 (ja) 2015-02-16 2019-07-31 キヤノン株式会社 カートリッジ及び画像形成装置並びにカートリッジの製造方法
JP6598468B2 (ja) 2015-02-16 2019-10-30 キヤノン株式会社 カートリッジ及び画像形成装置並びにカートリッジの製造方法
JP6771899B2 (ja) 2015-03-10 2020-10-21 キヤノン株式会社 カートリッジ、及び駆動伝達ユニットの組み立て方法
JP6950147B2 (ja) 2016-03-15 2021-10-13 ブラザー工業株式会社 プロセスカートリッジ
CA3025140A1 (fr) 2016-06-14 2017-12-21 Canon Kabushiki Kaisha Cartouche de traitement et dispositif de formation d'image electrophotographique
KR102128342B1 (ko) 2016-07-04 2020-07-08 캐논 가부시끼가이샤 현상 장치의 재생산 방법
EP3299902B1 (fr) * 2016-09-26 2020-07-15 Oki Data Corporation Récipient de toner, unité de formation d'images et appareil de formation d'images
KR102223456B1 (ko) 2017-06-15 2021-03-04 캐논 가부시끼가이샤 카트리지 및 전자 사진 화상 형성 장치
WO2020189798A1 (fr) 2019-03-18 2020-09-24 キヤノン株式会社 Dispositif de formation d'image électrophotographique et cartouche
JP2022049295A (ja) * 2020-09-16 2022-03-29 キヤノン株式会社 カートリッジ及びカートリッジの分解方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003236877A (ja) 2002-02-18 2003-08-26 Canon Inc 樹脂接合体及び電子写真画像形成装置本体に着脱自在なカートリッジ
JP2006044025A (ja) 2004-08-04 2006-02-16 Canon Inc 樹脂接合体及びプロセスカートリッジ

Family Cites Families (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3313900B2 (ja) * 1993-08-31 2002-08-12 キヤノン株式会社 プロセスカートリッジのフレーム及びプロセスカートリッジ及び電子写真画像形成装置
JP3267465B2 (ja) * 1994-06-24 2002-03-18 キヤノン株式会社 プロセスカートリッジ及び画像形成装置
JP3232499B2 (ja) * 1995-11-10 2001-11-26 京セラミタ株式会社 静電潜像現像装置
JP3445069B2 (ja) 1996-07-24 2003-09-08 キヤノン株式会社 現像ユニット及びプロセスカートリッジ及び画像形成装置
JP3200379B2 (ja) * 1996-11-19 2001-08-20 キヤノン株式会社 プロセスカートリッジ、及び、プロセスカートリッジの組み立て方法
JP3524334B2 (ja) 1997-02-10 2004-05-10 キヤノン株式会社 現像ユニット及びプロセスカートリッジ及び電子写真画像形成装置及びトナーシール
JP3437460B2 (ja) * 1998-08-31 2003-08-18 キヤノン株式会社 トナー容器
JP4136299B2 (ja) * 2000-09-12 2008-08-20 キヤノン株式会社 合成樹脂製の部品結合体
JP3840063B2 (ja) * 2001-04-27 2006-11-01 キヤノン株式会社 プロセスカートリッジ
JP3548558B2 (ja) * 2001-12-13 2004-07-28 キヤノン株式会社 プロセスカートリッジおよび電子写真画像形成装置
US6922534B2 (en) 2001-12-28 2005-07-26 Canon Kabushiki Kaisha Process cartridge and electrophotographic image forming apparatus having electrical connection for memory
JP4194298B2 (ja) 2002-05-17 2008-12-10 キヤノン株式会社 情報記憶媒体、ユニット、プロセスカートリッジ、現像カートリッジおよび電子写真画像形成装置
JP2004078006A (ja) * 2002-08-21 2004-03-11 Canon Inc 現像装置、帯電装置及びプロセスカートリッジ
JP4401713B2 (ja) 2003-08-29 2010-01-20 キヤノン株式会社 現像装置、プロセスカートリッジ及び電子写真画像形成装置
JP4101248B2 (ja) * 2004-04-16 2008-06-18 キヤノン株式会社 プロセスカートリッジの再生産方法
US7366439B2 (en) * 2004-06-14 2008-04-29 Canon Kabushiki Kaisha Method of remanufacturing cartridge and remanufactured cartridge
JP4185927B2 (ja) 2004-09-29 2008-11-26 キヤノン株式会社 現像装置、プロセスカートリッジ及び画像形成装置
JP4804212B2 (ja) 2006-04-19 2011-11-02 キヤノン株式会社 プロセスカートリッジ及び電子写真画像形成装置及びプロセスカートリッジの生産方法及び再生産方法
JP5094189B2 (ja) 2007-04-13 2012-12-12 キヤノン株式会社 プロセスカートリッジ
JP4968957B2 (ja) * 2008-03-31 2012-07-04 キヤノン株式会社 枠体ユニット、現像装置及びプロセスカートリッジ、並びに、枠体ユニット、現像装置及びプロセスカートリッジの製造方法
JP5506236B2 (ja) 2009-04-30 2014-05-28 キヤノン株式会社 カートリッジ、及び電子写真画像形成装置
US8942592B2 (en) 2009-12-16 2015-01-27 Canon Kabushiki Kaisha Process cartridge, photosensitive drum unit, developing unit and electrophotographic image forming apparatus
JP5063792B2 (ja) * 2010-05-18 2012-10-31 キヤノン株式会社 現像装置、プロセスカートリッジ、現像装置およびプロセスカートリッジの再生産方法
JP4846062B1 (ja) * 2010-08-20 2011-12-28 キヤノン株式会社 カートリッジ及び画像形成装置
JP5839826B2 (ja) 2011-04-22 2016-01-06 キヤノン株式会社 現像装置の再生産方法、プロセスカートリッジの再生産方法、現像装置、及び、プロセスカートリッジ
CN103930835B (zh) * 2011-11-09 2018-05-18 佳能株式会社 包括电极的盒
KR101703103B1 (ko) 2011-11-09 2017-02-06 캐논 가부시끼가이샤 카트리지 및 유닛
JP5460824B2 (ja) 2011-12-09 2014-04-02 キヤノン株式会社 カートリッジ
WO2013099999A2 (fr) * 2011-12-26 2013-07-04 Canon Kabushiki Kaisha Dispositif de développement, cartouche de traitement et unité à tambour
JP6057651B2 (ja) * 2012-10-01 2017-01-11 キヤノン株式会社 プロセスカートリッジおよびプロセスカートリッジの製造方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003236877A (ja) 2002-02-18 2003-08-26 Canon Inc 樹脂接合体及び電子写真画像形成装置本体に着脱自在なカートリッジ
JP2006044025A (ja) 2004-08-04 2006-02-16 Canon Inc 樹脂接合体及びプロセスカートリッジ

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11871778B2 (en) 2018-06-28 2024-01-16 Philip Morris Products S.A. Cartridge for an aerosol-generating system comprising an alkaloid source comprising a liquid alkaloid formulation

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PH12014501431B1 (en) 2014-09-22
US20140334844A1 (en) 2014-11-13
US8909096B2 (en) 2014-12-09
PH12014501431A1 (en) 2014-09-22
CN104011605A (zh) 2014-08-27
US9188940B2 (en) 2015-11-17
WO2013099999A3 (fr) 2013-10-10
US20130164029A1 (en) 2013-06-27

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